Answer:
What invention lets you look right through a wall?
I am heavy forward but backward I'm not.
I am orange and sound like a parrot.
What is the beginning of eternity the end of time and space the beginning of every end and the end of every race?
The person who makes it sells it. The person who buys it never uses it. The person who uses it never sees it. What is it?
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.